The plant in Sumter can produce 11m gummies a day and will mainly serve private label customers.
Mount Franklin claims it will give the company an edge in the $2.7bn nutraceutical industry.
The factory allows Mount Franklin to produce gummies fortified with multivitamins.
It says it aims to create products with reduced added sugars and non-GMO organic ingredients from fruit juices whenever possible.
The company said it can support pectin and gelatin based formulations with natural colors and flavors.
It also has packaging capabilities at the plant.
The Texas-headquartered company produces goods for major retailers, wholesalers, co-manufacturing customers and foodservice distributors through its Sunrise Confections and Azar Nut divisions.
Mount Franklin acquired the Sumter plant after previous owner the Au’some Candy Company went out of business.
The factory adds to Sunrise Confections’ other candy plant in Juarez, Mexico.